Star Life Cycle

4. a star that stops giving off energy x
7. a small blue or white star near the end of it's life cycle
9. a star's second stage where it's size is considered larger than usual
11. a star that increases in brightness due to an explosion that removes a large amount of mass
13. a massive star that expands and cools once it has used up all of it's hydrogen fuel
14. a small dense star made up of neutrons; remains of a star that exploded as a supergiant

1. a cloud that consists of gas and dust
2. a large cloud of gas that is created when the outer layers of a red giant drift into space
3. a dense nebula that forms stars by contracting both gas and dust
5. star that spends billions of years fusing hydrogen and helium with in their core
6. a star that has a much faster process of fusing hydrogen and helium with in it's core
8. a star's second stage where it's size is considered a normal size
10. a area of space that has such a strong gravitational field that no matter or radiation can escape
12. a contracting mass that resembles the early stages of a star's formation
15. a large star that expands and cools once it has used up all of it's hydrogen fuel